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<blockquote data-quote="s-band" data-source="post: 1020663" data-attributes="member: 407744">I wanted a full az-el mount for the Prodelin 1.2m and bought a CCTV pan and tilt. The Prodelin is too heavy for the mount I got so I tried it with a CM 1.2 (99p on Ebay). It works reasonably well but would benefit from a pole to pan &amp; tilt adapter that allows a counterbalance to be fitted. I just used what ever bits that were laying around to try it out.Good points:It has potentiometers to provide absolute position information so it is easy to return it to previous positions precisely.It could do full az-el 360/90 if I sorted out the mount.Easy to fit CM 1.2Cheap units appear on Ebay from time to time.Bad points:It doesn't have worm drives so can windmill although it stays where it's put most of the time. A counter-balance would help. It probably should be parked with the dish on its back when not in use.It has AC motors so can't be speed controlled. The elevation is ok but he azimuth is too fast and shakes the whole lot starting &amp; stopping. The speed is ok for&nbsp; Ku and below on the 1.2 but would not be easy to use on&nbsp; Ka.It needs skew control for linear polarisationIt proves the idea but I need to try to find a much bigger one with DC motors &amp; worm drives for the Prodelin 1.2m.[ATTACH]108634[/ATTACH] [ATTACH]108632[/ATTACH] [ATTACH]108633[/ATTACH]The CM1.2 is quite convenient to attach an X band feed. Here's a scan of 12W WGS-3[ATTACH]108635[/ATTACH]</blockquote>

[QUOTE="s-band, post: 1020663, member: 407744"] I wanted a full az-el mount for the Prodelin 1.2m and bought a CCTV pan and tilt. The Prodelin is too heavy for the mount I got so I tried it with a CM 1.2 (99p on Ebay). It works reasonably well but would benefit from a pole to pan & tilt adapter that allows a counterbalance to be fitted. I just used what ever bits that were laying around to try it out. Good points: It has potentiometers to provide absolute position information so it is easy to return it to previous positions precisely. It could do full az-el 360/90 if I sorted out the mount. Easy to fit CM 1.2 Cheap units appear on Ebay from time to time. Bad points: It doesn't have worm drives so can windmill although it stays where it's put most of the time. A counter-balance would help. It probably should be parked with the dish on its back when not in use. It has AC motors so can't be speed controlled. The elevation is ok but he azimuth is too fast and shakes the whole lot starting & stopping. The speed is ok for Ku and below on the 1.2 but would not be easy to use on Ka. It needs skew control for linear polarisation It proves the idea but I need to try to find a much bigger one with DC motors & worm drives for the Prodelin 1.2m. [ATTACH]108634[/ATTACH] [ATTACH]108632[/ATTACH] [ATTACH]108633[/ATTACH] The CM1.2 is quite convenient to attach an X band feed. Here's a scan of 12W WGS-3 [ATTACH]108635[/ATTACH] [/QUOTE]

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